Conflict with dependency 'com.android.support:support-annotations' in project ':app'. Resolved versions for app (26.1.0) and test app (27.1.1) differ.
안드로이드/에러해결2018. 9. 4. 14:11
build.gradle(module:app)에 들어가서
dependencies에
compile 'com.android.support:support-annotations:27.1.1'
이거 한줄 추가해주면 에러 해결